Facebook could have your phone number and email address—even if you never handed them over to the social network. Everyone knows that Facebook collects vast amounts of data. But what many people might ...

If you have an old phone number linked to your Facebook account, delete it. Anyone who comes into possession of that number can log into your account sans password, and you won't get so much as a ...

If you access Facebook from a mobile device, your phone number may be listed in your friends' contacts list. It's easy to remove your phone number, if you know where to look. Matt Elliott Senior ...

You may recently have gotten worried that Facebook has your phone number, even though you don't remember giving it to the social network. At the same time, you may have also realized the social ...

Facebook allows you to list several types of contact information on your profile page, such as your address, email and and instant-messenger screen name. You also have the option of including your ...

If you use Facebook, your phone number may not be as private as you think. A way in which Facebook privacy can be abused has come to light that will shock many users, but that the social network ...

A phone number can mean much more when it’s stored on Facebook’s servers – even if you only provided it to help secure your account. Last February, software engineer Gabriel Lewis tweeted that adding ...

Since about September, Facebook has offered its advertisers a powerful new way to track its users as they surf the Web: It's called "phone number retargeting." (The move comes separately to Facebook's ...

(CNN) -- Facebook is facing criticism for not allowing users to opt out of a feature that lets people look them up using their phone number or email address. This includes users who only added their ...